Science

Monday, 12 October 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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lava
Lavas are divided into three types based on their silicon dioxide (SiO2) content.
Lavas are distinguished by their acidity: Acidic, which have a high silica content, are viscous, fl ...
Amber
Amber is associated with good luck and protection.
In some cultures, amber necklaces are gifted as good luck charms, to newborn babies to protect them from diseases, or as a marriage gift that represents eternal love.
Silver
Silver is also used in medicine. Its healing properties were already described by Hippocrates.
Its importance in medicine lies in the use of strong antibacterial properties. Before antibiotics were available, silver compounds were used to prevent infections during World War I.
Tears
Tears are distributed evenly by blinking.
Graphene
In diamond, each of carbon’s four valence electrons is involved in the formation of such bonds.
As a result, diamond is a transparent, non-reactive insulator, and graphite is a black conductor, susceptible to chemical modifications.
Liver
It carries out over 500 vital functions, of which approximately 200 are performed simultaneously.
Aurora
The Aurora Borealis in the northern hemisphere is visible between September 21 and March 21, between 6 p.m. and 1 a.m. when it is dark outside.
The range of the region in Northern Europe includes the Kola Peninsula in Russia and the territory of three Nordic countries: Finland, Sweden, and Norway.
Tears
The human eye produces up to about 115 liters of tears annually.
Titan
It can hide life beneath its surface.
While its surface may be barren, it is likely that beneath its icy surface there may be an ocean tha ...
Moon
The Moon always faces the Earth with the same side.
This is because our natural satellite is in synchronous rotation with the Earth. A long time ago, th ...